Question

@interface MainViewController : UIViewController < FlipsideViewControllerDelegate >{
}

I am quite new to object oriented languages & especially obj.c.

I need to use addressbook framework within this class.Apple documentation suggests this code:

@interface ViewController : UIViewController < ABPeoplePickerNavigationControllerDelegate > {}

I was wondering how to use at the same time FlipSideControllerDelegate & ABPeoplePickerControllerDelegate.

In fact I really can’t understand what i am doing:)

Answer 1

You can declare your class as conforming to both the FlipsideViewControllerDelegate and the ABPeoplePickerNavigationControllerDelegate protocols like this:

@interface MainViewController : UIViewController <FlipsideViewControllerDelegate,
    ABPeoplePickerNavigationControllerDelegate> {}

Then implement the required methods in MainViewController‘s @implementation.